Obama has run a great campaign unlike Hillary. He has made his campaign about winning more delegates which is a good way to win a nomination. He is now showing that he cannot handle negative press as well as the Clintonistas. He needs to say as little as possible about this as possible and let his allies in the press help him ride this out.
It is way beyond BO saying as little as possible...that is the problem, his reluctance to say anything substantial about this and a lot of other things have left a void and once the Black Liberation bigotry was outted, his options are only bad and worse.
I don’t think he can pull it off.